(19)

(11)

EP 3 914 415 A1

(12)

(43) Date of publication: 01.12.2021 Bulletin 2021/48 (21) Application number: 20744301.1 (22) Date of filing: 22.01.2020

(51) International Patent Classification (IPC):  B23K 26/06(2014.01) B23K 26/08(2014.01) B23K 26/073(2006.01) B23K 26/342(2014.01) (52) Cooperative Patent Classification (CPC): B33Y 50/02; B23K 26/0604; B22F 2999/00; B23K 26/032; B33Y 30/00; B33Y 10/00; B23K 26/342; B22F 10/30; Y02P 10/25   C-Sets: B22F 2999/00, B22F 10/30, B22F 2203/03, B22F 2202/11; (86) International application number: PCT/US2020/014582 (87) International publication number: WO 2020/154381 (30.07.2020 Gazette 2020/31)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: KH MA MD TN (30) Priority: 23.01.2019 US 201962795693 P (71) Applicant: Vulcanforms Inc. Burlington MA 01803 (US)	(72) Inventors: KOMSTA, Jan, Pawel Worcester, MA 01606 (US) DUNBAR, Alexander Waltham, MA 02451 (US) SWEETLAND, Matthew Bedford, MA 01730 (US) (74) Representative: Grey, Ian Michael et al Venner Shipley LLP 200 Aldersgate London EC1A 4HD London EC1A 4HD (GB)